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The Male Reproductive System

The Male Reproductive System. MALE DIAGRAM. External Male Organs. Scrotum Loose sac of skin that surrounds the testes Regulates temperature of testes Testicles (Male sex glands) Produce sperm Epididymis Tubes located on back of each of the testes Stores sperm Penis

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The Male Reproductive System

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  1. The Male Reproductive System

  2. MALE DIAGRAM

  3. External Male Organs • Scrotum • Loose sac of skin that surrounds the testes • Regulates temperature of testes • Testicles (Male sex glands) • Produce sperm • Epididymis • Tubes located on back of each of the testes • Stores sperm • Penis • Tubelike organ that functions for reproduction, sexual pleasure, and elimination of body waste

  4. Internal Male Organs • Vas deferens • Tube that carries sperm • Seminal Vesicle • Gland that secretes sugary solution that mixes with sperm to aid in mobility • Prostate Gland • Gland that secretes an alkaline solution to sperm to decrease the acidity of the vagina • Cowper’s Glands • 2 pea-sized glands that open into urethra • Secrete a lubricating fluid • Urethra • Tube that carries urine or semen

  5. 3 Glands that Make Semen • Seminal Vesicles- secretes sugary solution to aid in mobility of sperm • Prostate Gland- secretes alkaline solution to decrease acidity of the uterus • Cowper’s Gland (bulbo-urethral glands)- secretes lubricating fluid

  6. 2 TUBES • Urethra- brings urine or semen out of the body through the penis • Vasdeferens- tube that carries sperm from the testes

  7. Terms • Erection- when the penis becomes engorged with blood • Ejaculation- when the semen leaves the penis • Semen-mixture of sperm and other fluids • Sterility-unable to reproduce • Vasectomy- a surgical procedure in which the vas deferens in manipulated

  8. Terms (cont) • Spermcells-cells produced in the testes • Epididymis- gland located on top of each testicle that stores sperm

  9. Concerns about male body: • Nocturnal Emission (“wet dream”) • Ejaculation that occurs during sleep • Hernia • Weak spot in abdominal wall near scrotum • Sterility • Unable to reproduce • Due to malformed or nonexistent sperm

  10. Cancers of the male • Testicular Cancer • 1% of all cancers in men • Most common in ages 15-34 • 12% of all cancer deaths • Signs: • Slight enlargement in teste • Lump (small, hard) • Dull ache and heaviness

  11. Cancers (cont.) • Prostate Cancer • Most common cancer in men after lung cancer • Common in men 50 and older • Signs: • Difficult/frequent urination • Blood in urine • Lingering pain in back, hips, or pelvis

  12. Cancer • Early detection is best way to prevent or treat cancer • Surgery may be necessary

  13. Path of sperm: • Testicles • Epidiymis • Vas Deferens • Seminal Vesicle • Prostate Gland • Cowper’s Gland • Urethra • Exits penis

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